I am getting blamed my account is in arrears.

2 Years ago I upgraded my contract of Cell No ***. I got told my account is in arrears of R500 and something rands. My debit order never went off. I phoned accounts and they said they made a mistake. It's not in arrears. So it's in credit. 6 months down the line I got a call from some management company, my account is in arrears R284.31. I made a payment. My account went in credit. Few months down the same thing happened. I made a payment my account went in credit. I accualy got a letter from CellC, Dear Mr De Klerk<br> <br> <br> Thank you for contacting Cell C.<br> <br> We apologise for the inconvenience that you have experienced. Please be advised that your is not in arrears is actually up to date.<br> <br> For further assistance please do not hesitate to contact our Customer Care Line on +27 84 140 / 140 (free from your Cell C Phone Number) alternatively you can send us an email to [Email Removed]<br> <br> <br> Regards<br> Manapo Mopeli<br> Cell C Written Correspondence Department. I sent them all the emails, proof of payments and the above letter.<br> Now they are still harassing me. Please HELP!!!